Globe-guard support.



W. F. NICHOLS.

GLOBE GUARD SUPPORT.

APPLICATION HLEU MAR.6.19H.

Patented May 28,1918.A

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- @www UNITE WILLIAM F. NICHOLS, OF CHICAGO, ILLINOIS.

GLOBE-GUARD SUPPORT.

Application led March 6, 1917.

ToaZZ 'whom it may concern:

Be it knownthat I, WILLIAM F. NICHOLS, a citizen of the United Statesresidingat Chicago. Cook county, State of Illinois, have inventedcertain new and useful Improvements in Globe-Guard Supports, of whichthe following, taken in connection with the drawings, is a description.

My invention has for its object the production of a globe guard support,designed to be used in connect-ion with arc light globes, about which isplaced a wire guard or protector such as is now in common use.Heretofore it has been customary to attach the wire guard to ringssuspended from or attached to the globe support, which necessitated theremoval of the same every time it became necessary to take the globeout, all of which required time and expensive labor.

-One of the objects of my invention is to provide a guard support whichis placed inside of the rim of the globe and remains there and isremoved with the globe whenever it becomes necessary to remove it, thusdoing away with the detailed work of re-` moving the wire guard beforethe globe can be removed.

A further object of my. invention is to produce a device of this classwhich may be used in connection with globes held in position either bysprings or screws of the kind now on the market, so that the guard maybe attached to any size of globe without alteration with respect to thefixtures accompanyin 'it'.

further object of the invention is to provide a support of this kindwhich will retain the parts in their proper position even if the globeshould be cracked or broken, as is sometimes the case.

A further object of my invention is to provide a support which may beplaced in position in the globe and be practically invisible from theoutside, and one which is so constructed that it will allow for thecontraction and expansion of the globe with the heat and cold.

Other objects of advantage in the construction and use will be apparentto those skilled in the art to which it pertains.

In the accompanying drawings, I have illustrated what I now consider thepreferred form of my invention, although the details thereofl may bevaried as to size, proportion, etc., without departing from the spiritthereof, and in these drawings,

Specification of Letters Patent.

Patented May as, 191s.

Serial No. 152,866.

Figure l is a` side elevation of the upper portion of an arc light globewith my apparatus attached thereto;

Fig. 2 is a transverse sectional detail, taken on line 2 2 of Fig. 1;

Fig. 3 is a plan view of a section of a stri of material out of which myguard is ma e;

Fig. et is a fragmentar)v detail, illustrating the manner of joining theends of the guard when brought together to form a ring or circle;

Fig. 5 is a fragmentary detail of the ring or circle, illustrating themanner of attaching one of the guard-retaining hooks, and

Fig. 6 is an enlarged sectional detail vthrough the ring and one of thehooks.

In carrying out my invention, A represents an arc lamp globe, which isof the construction'now in general use, having a neck or rim a' formedon the top thereof. My guard support is designed to fit inside of thisrim L and is provided with a flange which rests upon the top thereof.

This support is formed preferably of a thin sheet of metal B, a sectionof which is shown in Fig. 3, which is bent, folded and overlapped on thelines o, b2, into the form of construction shown in Fig. 6, one edge ofthe material, a, being folded inside to give the device strength andrigidity, the opposite edge, e2, extending at right angles to the lastfold and forming an outwardly extending circumferential flange, which isofthe same diameter as the rim a of the globe which it is to tit.

Before the elongated strip of material B is bent and overlapped aspreviously explained, the hooks C, which are also formed of the samekind of thin sheet metal, are cut to the desired shape and placed at thedifferent points desired on the guard and folded with the material inthe form shown in Fig. 6.

The inner end c of each hook is folded inside of the inner fold a of thering, as shown in Fig. 6, and projects beneath the outer edge of iange(z2 of the ring, where it is bent into the curve c', to which the wiresc2 forming the guard are secured.

lVhen the blank C forming the hook is placed in position on the materialB forming the ring and bent with it as shown in Fig. 6, the metal istapped to press the parts together, as shown at (Z. This means ofsecuring the parts together is very quickly and effectively done inassembling the parts, in

effect riveting them, together, without promanner previously described,the hook C in this instance having a wider base, d, which is foldedinside of the rim and secured by the indentations, cZ,.upon eachV sidethereof.

In the drawings I have shown the guard provided with four hooks forengaging the wires forming the guard, but it is obvious that more orless of these hooks may be provided, depending upon the size of theglobe upon which it is to be used, the guards being madeV in differentsizes to accommodate any of the different sizes of globes as now made.

`I claim:v

l. A globe guard support, comprising a ring formedv of a single piece ofmaterial, one longitudinal edge thereof being bent, folded and.overlapped uponvitself leaving lthe opposite edge to form an outwardlyeX- tending circumferential flange adapted to rest upon the rim of theglobe, and means projecting from said ring and engaging the j guard,substantiallyas described.

Copies of this patent may be obtained for I specification. ,2. A globeguard support, comprising a ,Y

ring formed of a single piece of material, one longitudinal edge ofwhich is bent, folded and overlapped upon itself, the ends of said pieceof material being joined together to form a ring having an outwardlyextending "circumferential iange, and a plurality of engaging deviceshaving one end of each folded inside of the ring and secured therein,substantially as described.

3. A globe guardy support comprising a ring lforl'n'ed 'of a singlepiece of material, one longitudinal edge of which is bent, folded andyoverlapped upon itself, the ends yof'said piecer of material beingjoined together to form the ring having an outwardly extendingcircumferential fiange, a plurality lof engaging devices secured in saidring at predetermined distances apart and extending outwardly therefromto engage the guard,

substantially as described.' j Y 4. A globe guard support, comprising aring formed of a single piece of in at'erial having the ends thereofjoined together, en-

gaging hooks projecting from the periphery of 'said ring and engagingthe guard, said hooks being secured tothe ring by indentations throughthe metal forming thesame,

substantially as described.`

In testimony whereof I have signed this WILLIAM r, Nic/Hons.

ve cents each, by addressing the Commissioner of Patents.` Washington,D. C. j

